A modular architectural system adapted for use with a finished wall in a patient room includes a service unit, a wall-masking panel, and an interface strip. The service unit includes a frame and a plurality of modular panels coupled to the frame to support service outlets relative to the finished wall. The wall-masking panel is spaced apart from the service unit and is arranged along an edge of the service unit. The interface strip is coupled to the service unit and arranged along the edge of the service unit between the service unit and the wall-masking panel to interconnect the service unit and the wall-masking panel.